He's correct, you're incorrect, and this last response of yours was shamefully irrelevant to the argument.
And none of his posts were relevant to the original post.
Also, if you can't use your profits to invest in something else, then it is not the same. Unless you're going to say he can use margin.
What good is a bar of gold sitting next to you if you can't use it at the grocery store?
And unless those stocks you picked are the best picks every single year for the rest of time, then you are losing out on the opportunity cost of not being able to invest in other things.